1345312643542 has 64 divisors (see below), whose sum is σ = 2347744849920. Its totient is φ = 566255289600.

The previous prime is 1345312643539. The next prime is 1345312643641. The reversal of 1345312643542 is 2453462135431.

It is a super-2 number, since 2×1345312643542² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 470223192 + ... + 470226052.

It is an arithmetic number, because the mean of its divisors is an integer number (36683513280).

Almost surely, 2^{1345312643542} is an apocalyptic number.

1345312643542 is a deficient number, since it is larger than the sum of its proper divisors (1002432206378).

1345312643542 is a wasteful number, since it uses less digits than its factorization.

1345312643542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4597.

The product of its digits is 1036800, while the sum is 43.

Adding to 1345312643542 its reverse (2453462135431), we get a palindrome (3798774778973).

The spelling of 1345312643542 in words is "one trillion, three hundred forty-five billion, three hundred twelve million, six hundred forty-three thousand, five hundred forty-two".